MHT CET 2022 Physics question
In Young's double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the slits. If the screen is moved by m towards the slits, the change in fringe width m. If the separation between the slits is m, the wavelength of light used is
Answer: (A)
Solution
The fringe width is . Moving the screen by changes the fringe width by , so \dfrac{Δβ d}{Δ D}$ =
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